After a night of fun, Abby was responsible for the car crash that killed her beloved brother. It is a sin she can never forgive herself for, so she pushes away the man she loves most, knowing that he would eventually hate her for what shes done, the same way she hates herself. Twenty years later, Abbys husband, Nate, is also living with a deep sense of guilt. He was the driver who first came upon the scene of Abbys accident, the man who pulled her to safety before the car erupted in flames, the man who could not save her brother in time. Its this guilt, this regret that binds them together. In a strange twist of fate, Liam (Abby's old lover) moves in with his own family next door, releasing a flood of memories that Abby has been trying to keep buried all these years. Abby and Liam, in a complicit agreement, pretend never to have met, yet cannot resist the pull of the pastnor the repercussions of the dark secrets theyve both been carrying.